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1. 发明申请

US20140264099A1 BLOWOUT PREVENTER WITH WEDGE RAM ASSEMBLY AND METHOD OF USING SAME 有权
标题翻译：具有楔形RAM组件的防喷器和使用其的方法
公开(公告)号：US20140264099A1
公开(公告)日：2014-09-18
申请号：US13834645
申请日：2013-03-15
申请人： NATIONAL OILWELL VARCO, L.P.
发明人： Jeffrey Thomas Melancon
IPC分类号： E21B33/06
CPC分类号： E21B33/063
摘要： A ram assembly of a blowout prevent (BOP) includes a ram shuttle, a ram wedge and a ram seat. The ram shuttle and the ram wedge are slidably positionable in a ram channel of a BOP housing between a retracted and extended position. The ram shuttle has a wedge cavity extending therethrough and an inclined surface thereon. The ram wedge has a tubular cavity therethrough for receiving the tubular. The ram wedge has a corresponding inclined surface engageable with the inclined surface of the ram shuttle, and wedges between the ram shuttle and the housing whereby a force is generated therebetween. The ram seat is positionable in the housing about the passage, and is engageable with the ram wedge and the housing when the ram shuttle and the ram wedge are moved to the extended position whereby a seal is formed therebetween.
摘要翻译：防喷器（BOP）的冲头组件包括冲头梭，冲头楔和冲头座。柱塞滑枕和冲头楔可滑动地定位在缩回和伸出位置之间的BOP壳体的冲头通道中。冲头梭具有延伸穿过其中的楔形腔和其上的倾斜表面。柱塞楔具有穿过其中的管状空腔，用于容纳管状物。柱塞楔具有与活塞滑梭的倾斜表面接合的相应的倾斜表面，以及在压头梭和壳体之间的楔形，由此在其间产生力。柱塞座可绕着通道定位在壳体中，并且当压头滑块和冲头楔移动到延伸位置时，可以与冲头楔和壳体接合，从而在它们之间形成密封。

2. 发明申请

US20230092113A1 RADIALLY EXPANDABLE LOCKS FOR VALVE SYSTEMS 有权
公开(公告)号：US20230092113A1
公开(公告)日：2023-03-23
申请号：US17951235
申请日：2022-09-23
申请人： National Oilwell Varco, L.P.
发明人： Jeffrey Thomas Melancon , Wade Ernest Sheppard
IPC分类号： F16K35/02
摘要： A valve lock for a linear valve system includes a housing including a passage configured to receive a rod of a linearly extendable valve member of the linear valve system, and a collet assembly received in the housing, wherein the collet assembly has a central axis extending parallel the rod of the valve member, a radially inner configuration with respect to the central axis of the collet assembly, and a radially outer configuration relative to the central axis of the collet assembly, wherein the lock includes an unlocked configuration associated with the radially outer configuration of the collet assembly, and a locked configuration associated with the radially inner configuration of the collet assembly and which locks against the rod of the valve member and thereby prevent the rod from travelling in at least one axial direction.

3. 发明授权

US10883331B2 Blowout preventer with interlocking ram assembly and method of using same 有权
公开(公告)号：US10883331B2
公开(公告)日：2021-01-05
申请号：US16066329
申请日：2016-01-07
申请人： National Oilwell Varco, L.P.
发明人： James A. Douty , Jeffrey Thomas Melancon
IPC分类号： E21B33/06 , E21B33/064 , E21B33/035
摘要： A ram assembly is disclosed. The ram assembly includes a ram wedge, a blade, and a ram seat. The ram wedge has a tubular cavity therethrough for receiving the tubular. The ram wedge is slidably positionable in the ram channel between a retracted and an extended position, and has rails extending therefrom. The blade is positionable about the tubular cavity, the blade carried by the ram wedge to cuttingly engage the tubular. The ram seat is positionable in the housing about the passage, and has a hole for receiving the tubular therethrough. The ram seat also has an outer surface interlockingly engageable with the rails as the ram wedge moves relative thereto whereby a gap is reduced therebetween.

4. 发明申请

US20190010777A1 Blowout Preventer with Interlocking Ram Assembly and Method of Using Same 审中-公开
公开(公告)号：US20190010777A1
公开(公告)日：2019-01-10
申请号：US16066329
申请日：2016-01-07
申请人： National Oilwell Varco, L.P.
发明人： James A. Douty , Jeffrey Thomas Melancon
IPC分类号： E21B33/06
摘要： A ram assembly is disclosed. The ram assembly includes a ram wedge, a blade, and a ram seat. The ram wedge has a tubular cavity therethrough for receiving the tubular. The ram wedge is slidably positionable in the ram channel between a retracted and an extended position, and has rails extending therefrom. The blade is positionable about the tubular cavity, the blade carried by the ram wedge to cuttingly engage the tubular. The ram seat is positionable in the housing about the passage, and has a hole for receiving the tubular therethrough. The ram seat also has an outer surface interlockingly engageable with the rails as the ram wedge moves relative thereto whereby a gap is reduced therebetween.

5. 发明授权

US09249643B2 Blowout preventer with wedge ram assembly and method of using same 有权
标题翻译：带楔式压头组件的防喷器及其使用方法
公开(公告)号：US09249643B2
公开(公告)日：2016-02-02
申请号：US13834645
申请日：2013-03-15
申请人： National Oilwell Varco, L.P.
发明人： Jeffrey Thomas Melancon
IPC分类号： E21B33/06
CPC分类号： E21B33/063
摘要： A ram assembly of a blowout prevent (BOP) includes a ram shuttle, a ram wedge and a ram seat. The ram shuttle and the ram wedge are slidably positionable in a ram channel of a BOP housing between a retracted and extended position. The ram shuttle has a wedge cavity extending therethrough and an inclined surface thereon. The ram wedge has a tubular cavity therethrough for receiving the tubular. The ram wedge has a corresponding inclined surface engageable with the inclined surface of the ram shuttle, and wedges between the ram shuttle and the housing whereby a force is generated therebetween. The ram seat is positionable in the housing about the passage, and is engageable with the ram wedge and the housing when the ram shuttle and the ram wedge are moved to the extended position whereby a seal is formed therebetween.
摘要翻译：防喷器（BOP）的冲头组件包括冲头梭，冲头楔和冲头座。柱塞滑枕和冲头楔可滑动地定位在缩回和伸出位置之间的BOP壳体的冲头通道中。冲头梭具有延伸穿过其中的楔形腔和其上的倾斜表面。柱塞楔具有穿过其中的管状空腔，用于容纳管状物。柱塞楔具有与活塞滑梭的倾斜表面接合的相应的倾斜表面，以及在压头梭和壳体之间的楔形，由此在其间产生力。柱塞座可绕着通道定位在壳体中，并且当压头滑块和冲头楔移动到延伸位置时，可以与冲头楔和壳体接合，从而在它们之间形成密封。

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